JP4491509B1 - palette - Google Patents

Abstract

A new pallet that does not require welding is provided.
A pallet 10 includes a first frame 41 to 43 in which four top side frames around a pallet skeleton 30 are arranged in parallel, and a second frame 44 disposed between the first frames at both ends of the frame. The end pallet leg 50 and the center pallet leg 60 support the corners and the center of the front and rear ends of the pallet. These pallet legs are wound around one of the first frames 41 to 43 and bent and fall down to hold the first frames 41 to 43, and then the frame wrapping portion on the side of the first frame that has been wound. The second frame 44 is firmly engaged with the first plate 61 or the second plate 62.
[Selection] Figure 1

Description

  The present invention relates to a pallet, and more particularly to a pallet used for cargo handling.

  Such pallets for cargo handling are frequently used for cargo handling transshipment by forklifts and cargo handling by trucks and the like, and durability is required. For this reason, in recent years, various steel pallets have been proposed in place of pallets using wood (for example, Patent Document 1).

JP-A-9-1224038

  In the steel pallet as proposed in the above-mentioned patent document, a manufacturing method in which the top plate and the legs are spot-welded is used to fix the top plate to the legs. Spatter that is scattered not only with spot welding but also with welding work causes troubles in the operator's work or deteriorates the working environment as the amount of scattering increases. In addition, because the top plate itself is an uneven processed product of a metal plate of vertical and horizontal sizes, or the leg itself is a processed metal plate of size that extends in the vertical direction of the top plate, the steel plate according to the desired pallet size A processed product was necessary and complicated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a new pallet with high versatility with a simple configuration.

  In order to achieve at least a part of the above object, the present invention adopts the following configuration.

[Application 1: Palette]
A pallet,
A top frame formed by disposing a second frame between the first frames on both ends of the first frames arranged in parallel;
A pallet leg extending from each corner of the top plate frame to support the top plate frame,
The pallet leg is
A first plate located on a frame end side of the second frame, and a second plate connected to the first plate; Holding a frame, and opposing the first plate and the second plate at a falling point falling from the held first frame,
Frame engagement that engages the second frame with the first frame by entering the frame hollow portion on the frame end side of the second frame at the frame winding portion corresponding to the side of the rolled first frame The main point is to have a mechanism.

  In the pallet having the above configuration, the top frame is formed by a first frame arranged in parallel and a second frame disposed between the first frames on both ends of the frame, and a pallet leg is provided at each corner portion. Have. The pallet leg is rolled up with the first frame at the top at the plate connection location of the first plate located on the frame end side of the second frame and the second plate connected to the second plate, and then falls down. The first frame is held, and the first and second plates are opposed to each other at a falling portion from the first frame. Therefore, this pallet leg supports the top plate frame at each corner portion through frame holding by winding and bending of the first frame and opposing of both the first and second plates. In addition, the pallet leg is inserted into the frame hollow portion on the frame end side of the second frame by the frame engagement mechanism at the frame winding portion on the side of the first frame, and the second frame is moved with respect to the first frame. Engage. As a result, in the formation of the top plate frame by the first frame and the second frame, and the support of the top plate frame by the pallet legs, the second frame engagement by the winding and bending of both the first and second plates and the frame engagement mechanism. Only the combination is required, and the structure and the handling of parts in the manufacturing process are simplified. And since it can respond to various pallet sizes only by changing the length of the 1st frame and the 2nd frame, versatility increases. In addition, since spot welding is not required when manufacturing the pallet, the pallet manufacturing environment can be improved.

  The above-mentioned pallet can be set as follows. For example, the pallet leg may be provided between both ends of the first frame, and the second frame may be engaged by the frame engaging mechanism also by the pallet leg between the both ends of the frame. In this way, even if the first frame becomes long, the first frame, and thus the top plate frame, can be supported by engaging the second frame with the pallet legs at or near the center. Therefore, the strength of the top plate frame itself and the holding strength of the top plate frame can be improved. These strength improvements result in an increase in the load carrying weight when a pallet is used for cargo handling.

  Further, a new second frame is disposed between the first frames in parallel with the second frame already disposed between the first frames and engaged by the pallet legs. The frame bending surrounding piece is disposed by bending the first frame around the frame disposition location. Then, the frame bending surrounding piece is inserted into the frame hollow portion on the frame end side of the new second frame at the frame winding portion where it hits the side of the first frame, and the new second frame is moved to the first frame. Can be engaged. In this way, the new second frame serves to reinforce the parallel first frame, so that the strength of the top frame can be improved, which is preferable in terms of an increase in the load carrying weight.

  The frame engagement mechanism that engages the second frame with the first frame can include a wedge fitting, a plate engagement portion, and a wedge plate. The wedge fitting is formed by bending the plate so as to be folded, and the bent end side is inserted into the frame hollow portion of the second frame through an insertion hole formed in the sheet metal processing plate at the winding portion. The plate engaging portion extends from the end of the wedge fitting on the side opposite to the bent end side of the wedge fitting, and engages the first plate at the periphery of the insertion hole. Thereby, the bent end side of the wedge fitting enters the frame hollow portion of the second frame in a state where the plate engaging portion is engaged with the first plate at the periphery of the insertion hole. Then, when the wedge plate is inserted from the plate engaging portion side into the folded portion of the wedge fitting, the wedge fitting expands the folded portion to the inner peripheral wall side of the frame hollow portion. Therefore, by inserting the wedge plate, the wedge metal fitting is expanded to the inner peripheral wall side of the frame hollow portion, and the second frame is engaged with the first plate. For this reason, the engagement between the first plate and the second frame, and hence the engagement between the first frame and the second frame, becomes strong, so that the strength of the top frame and the increase of the load carrying weight can be achieved. it can.

  Further, each of the pallet legs can be formed with a hollow leg-shaped portion by the first and second plates over the falling portion, and this improves the strength of the pallet legs themselves. It is possible to increase the load-bearing weight accompanying this. In this case, it is convenient if both the first and second plates are formed so as to form the hollow leg-shaped portion by linking the opposing plate portions at the falling portion. And at least one of the first plate and the second plate forming the hollow leg-shaped part, extending from the hollow leg-shaped part to the second plate side, and having a stay for supporting the second plate on the lower surface of the plate; it can. If it carries out like this, the intensity | strength of a top-plate frame can be raised easily by supporting a 2nd plate.

  And a flat plate extending along the first frame on the lower end side of the pallet leg corresponding to each of the first frames, and a rising plate rising from the flat plate toward the first frame. In each of the pallet legs that have fallen from the first frame, the ascending plate can be sandwiched between the lower ends of the opposing first and second plates. In this way, since the flat plate is located at the lower end of the pallet leg, it is possible to improve the placement property and stability on the floor surface.

  Further, the first frame and the second frame can be formed from a hollow shaft material, and thus the weight of the pallet can be reduced.

  In addition, the top plate can be fixed to the upper surface of the top frame formed by the first frame and the second frame, and this prevents the cargo from dropping between the top frames. Therefore, the range of cargo handling objects is expanded and versatility is enhanced. Screw fixing or the like is simple for fixing the top plate.

It is explanatory drawing which shows the outline | summary of the pallet 10 as one Example of this invention with the one part enlarged view. It is explanatory drawing which shows the pallet frame | skeleton part 30, enlarging a frame connection location. FIG. 5 is an explanatory view showing the center pallet leg 60 and the wedge metal fitting 100 used for fixing the second frame 44 together. FIG. 4 is a sectional end view taken along line 4-4 of FIG. 3. FIG. 6 is an explanatory view showing an initial state of engagement of the first frame 42 with the center pallet leg 60. It is explanatory drawing which shows the engagement / fixation procedure of the 2nd frame 44 to the center pallet leg 60 later on. It is explanatory drawing which expands and shows the mode of engagement of the edge part pallet leg 50 to the other end side of the 2nd frame 44 partially. It is explanatory drawing which shows the pre-stage which hold | maintains the 1st frame 42 of the center of a pallet in the prepared frame leg subassembly goods FS1. It is explanatory drawing which shows the condition which hold | maintained the 1st frame 42 of the pallet center in frame leg sub-assembly product FS1. It is explanatory drawing which shows the pre-stage which hold | maintains the 1st frame 41 and the 1st frame 43 of the pallet right and left in the frame leg sub-assembly product FS1. It is explanatory drawing which expands and shows partially the condition which hold | maintained the 1st frame 41 and the 1st frame 43 of the pallet right and left in the frame leg sub-assembly product FS1. FIG. 6 is a schematic perspective view of a frame bending surrounding piece 70A on one end side used for engagement of a reinforcing second frame 44. It is a schematic perspective view of the frame bending surrounding piece 70B on the other end side. It is explanatory drawing which shows the flame | frame sub-assembly product FS2 for reinforcement using the 2nd flame | frame 44. FIG. It is explanatory drawing which shows a mode that the flame | frame sub-assembly product FS2 is mounted to the 1st frames 41-43. It is explanatory drawing which expands partially the state of the frame holding | maintenance in the pallet frame | skeleton part 30 and pallet right-and-left and center which have been reinforced in frame sub-assembly product FS2. It is explanatory drawing which shows the general | schematic perspective view of the floor surface touch plate 80E which carries out gripping engagement to the edge part pallet leg 50 of a pallet right-and-left end with a principal part cutting end view. It is a schematic perspective view of the floor surface touch plate 80S that is gripped and engaged with the center pallet leg 60 at the center of the pallet. It is explanatory drawing which shows the front stage of floor surface touchplate fixation to the pallet frame | skeleton part. It is explanatory drawing which expands and shows the mode of floor surface touchplate fixation to the pallet frame | skeleton part 30 partly. 3 is a schematic perspective view of a corner stay 90. FIG. It is explanatory drawing which shows the mode of the assembly | attachment of the corner stay 90, partially expanding. FIG. 6 is an explanatory diagram illustrating an outline of a pallet 210 according to a modified example, corresponding to FIG. 1. It is explanatory drawing which expands and shows the mode of the frame connection in the frame center by the center pallet leg 260. It is explanatory drawing which shows the mode of the frame connection seen from the A direction in FIG. 24, omitting one second frame 44. FIG. 4 is an explanatory view corresponding to FIG. 3 and showing a central pallet leg 260 and a wedge metal fitting 100 together. It is explanatory drawing which expands and shows the mode of the frame connection in the frame corner by the edge pallet leg. It is explanatory drawing which shows the edge part pallet leg 250 and the wedge metal fitting 100 together. It is explanatory drawing which shows a mode that the 2nd flame | frame 44 is engaged with the both sides of the 1st flame | frame 42 by the frame bending surrounding piece 270A. It is explanatory drawing which shows a mode that the 2nd flame | frame 44 is engaged with the one side of the 1st flame | frame 43 by the flame | frame bending surrounding piece 270B. It is explanatory drawing which decomposes | disassembles and shows the plate subassembly product 280SA which is a structural unit of the floor surface touch plate 280 in the pallet 210. FIG. It is explanatory drawing which shows the mode of the assembly | attachment of plate sub-assembly product 280SA. It is explanatory drawing which shows the mode of the assembly of the floor surface touch plate 280. FIG. FIG. 7 is an explanatory view showing an engagement / fixing procedure of the second frame 44 to the center pallet leg 260 corresponding to FIG. 6. FIG. 8 is an explanatory view showing a state of engagement of the end pallet leg 250 to the other end side of the second frame 44, corresponding to FIG. It is explanatory drawing which shows the mode of the mounting | wearing of the frame bending surrounding piece 270A to the 1st frame 42, and the 1st frame 42 by which the surrounding piece was mounted | worn. FIG. 9 is an explanatory view showing a previous stage of holding the first frame 42 at the center of the pallet in the frame leg sub-assembly product FS1 of the modified example, corresponding to FIG. It is explanatory drawing which shows the mode of the mounting | wearing of the frame bending surrounding piece 270B to the 1st frame 41, and the 1st frame 41 with the surrounding piece attached. It is explanatory drawing which shows the pre-stage which hold | maintains the 1st frame 41 and the 1st frame 43 of the pallet right and left in the frame leg sub-assembly product FS1 of a modification. FIG. 11 is an explanatory diagram illustrating a state in which the first frame 41 and the first frame 43 on the left and right of the pallet are held in the frame leg sub-assembly product FS1 according to a modified example, corresponding to FIG. FIG. 12 is an explanatory view showing a state in which the first frame 41 and the first frame 43 on the left and right of the pallet are held in the frame leg sub-assembly product FS1 according to a modified example, corresponding to FIG. FIG. 20 is a diagram corresponding to FIG. 19, and is an explanatory diagram illustrating a previous stage of fixing the floor surface touch plate to the pallet skeleton portion 30 of a modified example. FIG. 21 is a diagram corresponding to FIG. 20, and is an explanatory diagram showing a state of fixing the floor surface touch plate to the pallet skeleton part 30 of a modified example.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing an outline of a pallet 10 as an embodiment of the present invention together with a partially enlarged portion thereof.

  As shown in the figure, the pallet 10 includes a top plate 20 mounted on a pallet skeleton 30. The top plate 20 is a wooden rectangular plywood or a resin rectangular single plate, and is fixed to the pallet frame 30 with screws. As the screw 22 used for fixing the top plate, a screw (for example, countersunk screw) that is flush with the upper surface of the top plate 20 after being screwed is used. By doing so, the article placed on the top plate 20 can be easily slid on the top surface of the top plate, and at this time, careless scratches can be left on the bottom surface of the product. Note that a countersink hole may be provided on the top surface of the top plate 20 and screwed. The pallet 10 can be used as a pallet only by the pallet skeleton part 30 that does not include the top plate 20. In this case, the pallet 10 can be used to place an article having a size that does not fall into the lattice frame that constitutes the pallet skeleton part 30. Can be used.

  FIG. 2 is an explanatory view showing the pallet frame 30 while enlarging the frame connection portion. As shown in the figure, the pallet skeleton 30 supports a top plate frame 40 on which the top plate 20 is placed with a plurality of pallet legs extending from each part of the frame. The top frame 40 includes three first frames 41 to 43 arranged in parallel, and a plurality of second frames 44 disposed between adjacent first frames. Each of these frames is formed of a prismatic hollow shaft material, and the vertical and horizontal dimensions of the shaft cross section are the same in the first frame and the second frame.

  The first frames 41 to 43 are disposed at the left and right ends of the pallet and the center thereof in the drawing, and the shaft length defines the vertical size of the pallet 10. The second frame 44 is disposed between the first frames on both ends of the first frame 41 and the first frame 42 adjacent to each other in parallel, and a ladder shape between the first frames at an appropriate pitch. Parallel to the The same applies between the first frame 42 and the first frame 43 which are adjacent in parallel. The shaft length of the second frame 44 defines the lateral size of the pallet 10. In other words, since the frame length is determined according to the vertical and horizontal sizes of the pallet, the desired pallet size can be flexibly dealt with and the versatility is high. In the present embodiment, the first frames 41 to 43 are arranged at the left and right ends of the pallet and the center thereof for securing the strength. However, when the pallet size is small, the first frame 42 at the center can be omitted. In this case, the second frame 44 is disposed between the first frame 41 and the first frame 43 in parallel with both ends of the first frame.

  The pallet skeleton part 30 includes end pallet legs 50 on the left and right ends of the pallet and a central pallet leg 60 in the center of the pallet. The end pallet legs 50 located at each corner portion of the top frame 40 extend from each corner and support the top frame 40. The end pallet legs 50 located between the left and right corners of the pallet extend from the first frame 41 and the first frame 43 constituting the top plate frame 40 to support the top plate frame 40. In FIG. 2, the end pallet leg 50 at the right front end of the pallet, which is one end of the first frame 43, is shown in an enlarged view with the reference symbol A, and the other end of the first frame 43 with the reference symbol A1. The end pallet leg 50 at the end and the end pallet leg 50 denoted by reference symbol A have a so-called left-right specification configuration in a mirror image relationship. The end pallet legs 50 at the left and right ends of the pallet between both ends of the frame have the same configuration as the end pallet legs 50 at the left and right ends of the pallet front end.

  Central pallet legs 60 located at both ends and inside the first frame 42 at the center of the pallet extend from the first frame 42 constituting the top plate frame 40 and support the top plate frame 40. In FIG. 2, a central pallet leg 60 at the front end of the pallet, which is one end of the first frame 42, is shown in an enlarged view with reference numeral B. The central pallet leg 60 and the central pallet leg 60 at the center of the pallet have the same configuration as the central pallet leg 60 at the center front end of the pallet, as indicated by reference numeral B. The center pallet leg 60 at the rear end of the pallet has a mirror image of the engagement of the second frame 44 with the first frame 42 at the center of the pallet. Are the same. Both the pallet legs of the end pallet leg 50 and the center pallet leg 60 serve to engage the second frame 44 between the first plates, which will be described later.

  The top frame 40 engages the first frame 41 to 43 with the frame bent surrounding pieces 70A to 70B except for the second frame 44 engaged with the end pallet leg 50 or the center pallet leg 60. To do. As shown in FIG. 2, the frame bending surrounding piece 70 </ b> A is disposed between both ends of the first frame 42. Is engaged with the first frame 42. The frame bending surrounding piece 70B is disposed between both ends of the first frame 41 and the first frame 43, and is attached to the first frame 41 or the first frame 41 so as to be enlarged after being attached with a symbol D. Engage with the frame 43. The manner of frame engagement by the frame bending surrounding piece will be described later.

  The pallet skeleton part 30 includes a floor surface touch plate 80 on the lower side of the first frames 41 to 43. The floor touch plate 80 includes a floor touch plate 80E corresponding to the first frame 41 and the first frame 43 at the left and right ends of the pallet, and a floor touch plate 80S corresponding to the first frame 42 at the center of the pallet. Yes. These floor touch plates 80 extend along the corresponding first frames 41 to 43 and are sandwiched between the end pallet legs 50 or the center pallet legs 60 described above. The configuration of the floor touch plate 80 and the state of clamping by the pallet legs will be described later.

  In addition, the pallet skeleton part 30 has corner stays 90 at each corner part of the top frame 40 and both ends of the first frame 42 at the center of the pallet. The corner stay 90 of each part is configured to have a left-right specification having a mirror image relationship, and the end pallet leg 50 or the central pallet leg 60 and the second frame 44 are connected and reinforced at the installation location. The corner stay 90 is provided with a screw hole into which the screw 22 of FIG. 1 is screwed on the upper end surface thereof, and is fixed to the second frame 44 together with the top plate 20 by the screw 22. When the top plate 20 is not used, the top plate 20 is fixed to the second frame 44 with screws 22. The corner stay 90 is fixed to the end pallet leg 50 or the center pallet leg 60 on the lower end side, and the situation will be described later.

  Next, the configuration of each part constituting the pallet 10 and the state of frame engagement and clamping of the floor surface touch plate 80 will be described along the pallet production procedure. 3 is an explanatory view showing the central pallet leg 60 and the wedge metal fitting 100 used for fixing the second frame 44, FIG. 4 is an end view taken along line 4-4 of FIG. 3, and FIG. 6 is an explanatory view showing an initial state of engagement of the first frame 42, and FIG. 6 is an explanatory view showing the engagement / fixing procedure of the second frame 44 to the central pallet leg 60 in order.

  As shown in FIG. 3, the center pallet leg 60 is a sheet metal processing plate formed by pressing a steel plate, and the first plate 61 and the second plate 62 pressed into a concave shape are joined to a curved bridge 63. Connect. Both the first plate 61 and the second plate 62 have a shallow concave gripping portion 64 on the end side, and have a notch 64a at the gripping portion base. Moreover, both said plates are provided with the engagement nail | claw 65 in a concave shaped site | part, and are provided with the wedge insertion hole 67 in the connection site | part 61a, 62a by the side of the bridge 63. The bridge 63 is formed into a flat plate shape by being bent so that both the first plate 61 and the second plate 62 face each other, and includes a through hole 63a for facilitating flattening. The second plate 62 has a notch 68 that cuts out a concave portion between the engaging claws 65, and is bent in advance at the notch 68 in preparation for pinching and fixing a floor surface touch plate 80 described later.

  Since the first plate 61 has a concave shape wider than the second plate 62, the second plate 62 is overlapped with the first plate 61 when bent so that both plates face each other as described above. To enter the recess. Therefore, the first plate 61 embraces the second plate 62, and both the plates form a prismatic hollow leg-shaped portion. In addition, the engaging claws 65 of the second plate 62 enter the claw insertion holes 66 that the first plate 61 has at the bottom ends of the concave portion, and the plates are integrated by bending the engaging claws 65. . Furthermore, the engaging claw 65 of the first plate 61 is bent so as to hold the wall surface of the second plate 62 so that the two plates are integrated. The formation of the hollow leg-shaped portion by bending both plates and the integration associated with the bending of the engaging claw 65 will be described later.

  The connecting portions 61a and 62a are both shallow concave shapes, and the wedge insertion hole 67 is formed at the bottom of the connecting portion. As shown in FIG. 4, the wedge insertion hole 67 is formed eccentrically with respect to the first plate 61 and the second plate 62, and the peripheral edge of the hole is a narrow peripheral edge 67b and an extended peripheral edge 67c. A protruding piece 67 a is formed from the bottom surfaces of the two plates on the peripheral edge in the longitudinal direction of the wedge insertion hole 67 (see FIG. 3), and the protruding piece 67 a enters the end of the second frame 44. Here, the eccentric formation of the wedge insertion hole 67 will be described. As described above, although the central pallet leg 60 at the pallet central front end and the central pallet leg 60 at the pallet central rear end shown in FIG. 2 have the same configuration, the central pallet leg 60 in the state shown in FIG. If used, the central pallet leg 60 in the state shown in FIG. In this way, the positions of the narrow peripheral edge 67b and the extended peripheral edge 67c can be reversed between the pallet center front end and the pallet center rear end. For this reason, the following measures are possible.

  In the pallet skeleton part 30 shown in FIGS. 1 and 2, the first frames 41 to 43 and the second frame 44 intersect at the pallet front end and the pallet rear end. In handling the pallet, it is desirable that the end of the frame does not protrude as much as possible at the frame intersection at the front and rear ends of the pallet. Therefore, the center pallet leg 60 at the pallet center front end intersects and engages the left and right second frames 44 as close as possible to the end surface of the first frame 42 on the pallet front end side. Position on the side. On the other hand, since the central pallet leg 60 at the rear end of the pallet is used in the half rotation state described above, the narrow peripheral edge 67b can be positioned on the rear end side of the pallet in FIG. Similarly, the left and right second frames 44 are crossed and engaged as close as possible to the end face of the first frame 42 on the pallet rear end side.

  The wedge metal fitting 100 is a press-worked product that has undergone forging and bending formation of a steel plate, and the folded wedge plate portion 102 is connected by a wedge tip portion 103 on the bent end portion side, and a bulge that has undergone forging on both sides of the wedge tip portion 103. The unit 104 is provided. The folded wedge plate portion 102 forms a wedge insertion gap 105 for driving the wedge plate 110 (see FIG. 6) on the side opposite to the wedge tip portion 103. The raised portion 104 is formed by being crushed by forging, and has increased hardness. Further, the wedge fitting 100 has an engagement portion 106 that is bent from the end portion of the wedge plate portion 102 on the side opposite to the wedge tip portion 103 and extends to both sides. The engaging portion 106 is formed such that one is short and the other is long in correspondence with the eccentric formation of the wedge insertion hole 67 described above. The length of the engaging portion 106 corresponds to the extent of the narrow peripheral edge 67b and the expanded peripheral edge 67c. As shown in FIG. 5, the wedge fitting 100 having such a configuration includes a wedge insertion hole 67 in the first plate 61 and the second plate 62 at the wedge tip portion 103, the raised portions 104 on both sides thereof, and the tip side of the wedge plate portion 102. The engaging portion 106 is engaged with the first plate 61 and the second plate 62 (specifically, the connecting portions 61a and 62a) at the periphery of the wedge insertion hole 67.

  In forming the pallet skeleton 30, first, as shown in FIG. 3, the wedge metal fitting 100 is first installed in the wedge insertion hole 67 of the central pallet leg 60 as described above, and then, as shown in FIG. The frame 44 is set. When the wedge metal fitting 100 is mounted, the long and short engaging portions 106 are engaged with the narrow peripheral edge 67b and the extended peripheral edge 67c at the peripheral edge of the wedge insertion hole 67. When the second frame 44 is set, the wedge distal end portion 103 and the raised portion 104 of the wedge fitting 100 and the distal end side of the wedge plate portion 102 are inserted into the frame hollow portion of the second frame 44. Then, the end face of the second frame 44 is brought into contact with the center pallet leg 60 (specifically, the bottom surfaces of the connecting portions 61 a and 62 a of the first plate 61 and the second plate 62), and the protruding piece on the periphery of the wedge insertion hole 67. 67a is inserted into the hollow portion of the frame at the end of the second frame 44. In the present embodiment, as will be described later, the engagement of the second frame 44 is strengthened by the wedge fitting 100, but the second frame 44 is engaged only by the protruding piece 67a without using the wedge fitting 100. It can also be. In this case, as shown in FIG. 4, the protruding height is increased after adjusting the interval between the protruding pieces 67 a so that the protruding pieces 67 a facing each other fit in the hollow portion of the frame without a gap. In this way, the projecting piece 67a can be fitted into the hollow portion of the second frame 44 without any gap, and the length of the projecting piece 67a can be secured, so that the projecting piece 67a alone is a component part of the central pallet leg 60. The second frame 44 can be engaged with the first plate 61 and the second plate 62.

  Following the setting of the second frame 44 described above, as shown in FIG. 6, the wedge plate 110 is inserted into the gap 105 of the wedge fitting 100, and the wedge plate 110 is driven by a driving tool such as a hammer. The wedge plate 110 is driven until the upper end (drive end) of the plate is flush with the engaging portion 106 of the wedge fitting 100. By driving the wedge plate 110, the wedge metal fitting 100 expands the folded wedge plate portion 102 toward the inner peripheral wall of the frame hollow portion of the second frame 44, and this extension causes the second frame 44 at the raised portion 104. The peripheral wall is raised outward to form a raised mark 44a. Thereby, the second frame 44 is firmly engaged and fixed to the central pallet leg 60, specifically, the first plate 61 and the second plate 62 constituting the leg. In addition, the bulging trace 44 a remains from the opening end of the second frame 44, and the inner peripheral wall of the frame hollow portion expands and is left behind, and the bulging portion 104 located in the bulging trace 44 a is open to the end portion of the second frame 44. Will spread more. For this reason, the fixing strength of the second frame 44 can be increased, which is preferable from the viewpoint of holding the second frame 44 engaged.

  After the second frame 44 is engaged with the central pallet leg 60 as described above, the end pallet leg 50 is engaged with the other end side of the second frame 44. This end pallet leg 50 is also a sheet metal processing plate formed by pressing a steel plate in the same manner as the central pallet leg 60, and includes a first plate 61 and a second plate 62 pressed into a concave shape. They are connected by a curved bridge 63. Since the end pallet leg 50 connects the second frame 44 at the left and right ends of the pallet, one wedge insertion hole 67 is sufficient on the first plate 61 side. And different. That is, the end pallet leg 50 does not have the wedge insertion hole 67 on the second plate 62 side in FIG. 3, and the connecting portion 62a on the second plate 62 side has a flat plate shape. FIG. 7 is an explanatory view showing the state of engagement of the end pallet leg 50 to the other end side of the second frame 44 while partially enlarging it.

  Prior to the engagement of the end pallet legs 50, the central pallet leg 60 of FIG. 6 with the two second frames 44 engaged is bent so that the two second frames 44 open as shown. As a result, the open end sides of the respective second frames 44 are separated from each other, and the end pallet legs 50 are engaged and fixed to the open end sides to obtain the frame leg sub-assembly product FS1. When the end pallet leg 50 is engaged and fixed, the wedge plate 100 is driven after the wedge fitting 100 is inserted into the wedge insertion hole 67 and the frame hollow portion of the second frame 44. The two end pallet legs 50 shown in FIG. 7 are engaged with the second frame 44 so that one side is the left specification and the other is the right specification as described in FIG. Fixed and fixed. In the end pallet leg 50 and the center pallet leg 60 facing each other with the second frame 44 interposed therebetween, the narrow peripheral edges 67b of the wedge insertion hole 67 peripheral edges and the extended peripheral edges 67c face each other with the second frame 44 interposed therebetween. Become.

  As shown in FIG. 2, the frame leg sub-assembly product FS1 shown in FIG. 7 is prepared for two sets before and after the pallet and two sets at the center of the pallet. In this case, in the two sets at the front and rear ends of the pallet, the center pallet leg 60 included in each set is in the state shown in FIG. 3 in one set, and in the other set, as shown in FIG. It will be in the state that was made Thereby, in each set of pallet front and rear ends, the central pallet leg 60 is provided with the protruding piece 67a and the narrow peripheral edge 67b so as to face the end pallet leg 50 of the left and right specification in the above-described relationship. The two sets of frame leg sub-assemblies FS1 at the center of the pallet are the same as the sets at the front and rear ends of the pallet in this embodiment, but the same as the frame leg sub-assemblies FS1 at the front end of the pallet or the frame leg sub-assemblies FS1 at the rear end of the pallet. It may be the same as the assembly product FS1. FIG. 8 is an explanatory view showing a pre-stage of holding the first frame 42 at the center of the pallet with the prepared frame leg sub-assembly product FS1, and FIG. 9 shows holding the first frame 42 at the center of the pallet with the frame leg sub-assembly product FS1. It is explanatory drawing which shows the condition which carried out.

  As shown in FIG. 8, the prepared frame leg subassembly product FS1 is divided into a frame leg subassembly product FS1 at the front end of the pallet, two sets of frame leg subassembly products FS1, and a frame leg subassembly product FS1 at the rear end of the pallet. They are arranged in order and arranged on the first frame 42. The frame leg sub-assembly product FS1 at the pallet front end and the pallet rear end is located at the end of the first frame 42. Then, as indicated by the white arrows in FIG. 8, the left and right second frames 44 are pushed down so that the end pallet leg 50 in each frame leg sub-assembly product FS <b> 1 is positioned on the side of the first frame 42. As a result, the central pallet leg 60 is bent by the bridge 63 (see FIG. 3) described above, and the bridge 63 becomes flat, and the central pallet leg 60 has the first frame 42 as shown in FIG. The first frame 42 is wound and bent at the bridge 63 and the connecting portions 61a and 62a on both sides of the bridge 63, and the first frame 42 is held at the leg placement location.

  Each central pallet leg 60 falls from the held first frame 42, and at the fall point, the first plate 61 and the second plate 62 are opposed to each other as described above, and then the first plate A prismatic hollow leg-shaped portion is formed so that 61 embraces the second plate 62. Since the center pallet leg 60 has already engaged with the second frame 44 by the wedge fitting 100 and the wedge plate 110, the left and right second frames 44 are moved to the center pallet at the frame wrapping portion that hits the side of the first frame 42. The first plate 61 and the second plate 62 constituting the leg 60 are engaged with each other (specifically, the connecting portions 61a and 62a). Further, since the center pallet leg 60 has already engaged the second frame 44, the second frame 44 is engaged with the first frame 42. Thereafter, as shown in the enlarged view of FIG. 9, the engaging claw 65 of the second plate 62 protruding from the claw insertion hole 66 of the first plate 61 is bent so as to hold the wall surface of the first plate 61. The 61 engaging claws 65 are also bent so as to hold the wall surface of the second plate 62. The engagement claw 65 is bent only on the side immediately below the second frame 44. As shown in FIG. 3, the second plate 62 is bent in advance at the notch 68, so that the second plate 62 faces the first plate 61 on the lower end side of the central pallet leg 60, but sandwiches a floor touch plate 80 described later. A gap is formed in preparation. FIG. 10 is an explanatory view showing a previous stage of holding the first frame 41 and the first frame 43 on the left and right sides of the pallet in the frame leg sub-assembly product FS1, and FIG. 11 is a first view on the left and right sides of the pallet in the frame leg sub-assembly product FS1. It is explanatory drawing which shows the condition which hold | maintained the frame 41 and the 1st frame 43. FIG.

  As shown in FIG. 10, the first frame 41 and the first frame 43 are arranged on the left and right ends of the pallet of the frame leg sub-assembly product FS1 that holds the first frame 42. Then, as indicated by white arrows in FIG. 10, the second plate 62 of the end pallet leg 50 in each frame leg sub-assembly FS1 is bent by the bridge 63 (see FIG. 3) described above. As a result, the bridge 63 has a flat plate shape, and the end pallet legs 50 are bent with the first frame 41 or the first frame 43 on top as shown in FIG. Then, the first frame 41 or the first frame 43 is held at the leg arrangement location.

  Each end pallet leg 50 falls from the held first frame 41 or the first frame 43, and the first plate 61 and the second plate 62 are opposed to each other at the falling portion as described above. Thus, the prismatic hollow leg-shaped portion is formed so that the first plate 61 embraces the second plate 62. Since the end pallet leg 50 has already been engaged with the second frame 44 by the wedge metal fitting 100 and the wedge plate 110, the second pallet leg 50 is located at the frame entanglement position where it hits the side of the first frame 41 or the first frame 43. 44 is engaged with the second plate 62 constituting the end pallet leg 50. Further, since the end pallet leg 50 has already engaged the second frame 44, the second frame 44 is engaged with the first frame 41 or the first frame 43. Thereafter, as shown in the enlarged view of FIG. 11, the engaging claws 65 of the second plate 62 and the engaging claws 65 of the first plate 61 that are protruded from the claw insertion holes 66 of the first plate 61 are bent. This procedure is the same as that for the central pallet leg 60. As shown in FIG. 11, the first frame 41 and the first frame 42 arranged in parallel with each other and the first frame 41 arranged in parallel by the above-described assembly of the frame leg sub-assembly product FS1 with the first frame 41 and the first frame 43. A top frame 40 having a second frame 44 disposed between the first frame 41 and the first frame 42 and between the first frame 42 and the first frame 43 at both ends of the frame 42 and the first frame 43. Will be formed. That is, the main part of the pallet skeleton part 30 of the present embodiment is completed in the state shown in FIG.

  If the loading object handling as the pallet 10 is not a special heavy object, the handling ability can be secured by the frame structure of the vertical and horizontal lattices shown in FIG. Therefore, if the placement of a lightweight object is a main pallet application, in the state of FIG. 11, a floor touch plate 80 (to be described later) is sandwiched between the leg lower ends of the end pallet leg 50 and the center pallet leg 60 and the leg lower end side. It is also possible to complete the bending of the engaging claws 65 to form the pallet skeleton 30. In the present embodiment, the second frame 44 reinforces as follows so as to withstand the placement of heavy objects. 12 is a schematic perspective view of a frame bent surrounding piece 70A on one end side used for engaging the reinforcing second frame 44, FIG. 13 is a schematic perspective view of a frame bent surrounding piece 70B on the other end side, and FIG. FIG. 15 is an explanatory diagram showing how the frame sub-assembly product FS2 is mounted on the first frames 41 to 43, and FIG. 16 is a diagram showing the frame sub-assembly product FS2. It is explanatory drawing which shows the mode of the frame holding | maintenance in the pallet frame | skeleton part 30 and pallet right-and-left and center which have been reinforced.

  The frame bent surrounding piece 70A is a press-formed product of a steel plate, and connects the first base portion 70A1 and the second base portion 70A2 with a bent portion 70A3 as shown in FIG. The first and second base end portions are bent tongue pieces 70A5, and the frame bent surrounding piece 70A flattens the bent portion 70A3 so that the first base portion 70A1 and the second base portion 70A2 face each other. Thus, the first frame 42 is wound around the base portion, the bent portion 70A3, and the both tongue pieces. The frame bending surrounding piece 70A includes a frame insertion piece 70A4 facing the first base portion 70A1 and the second base portion 70A2. The frame insertion piece 70 </ b> A <b> 4 enters the frame hollow portion of the second frame 44 with a slight clearance and holds the second frame 44. In this case, since the frame insertion piece 70A4 has a length of about 10 mm, the second frame 44 can be held without hindrance.

  The frame bending surrounding piece 70B is also a press-formed product of a steel plate, and as shown in FIG. 13, the first base portion 70B1 and the second base portion 70B2 are connected by the bending portion 70B3. The first base end portion is a bent tongue piece 70B5, and the frame bent surrounding piece 70B winds up the first frame 42 by flattening the bent portion 70B3 like the frame bent surrounding piece 70A. The frame bending surrounding piece 70B is provided with the frame insertion piece 70B4 facing the first base portion 70B1. The frame insertion piece 70 </ b> B <b> 4 enters the frame hollow portion of the second frame 44 with a slight clearance so as to hold the second frame 44.

  As shown in FIG. 14, when the reinforcing frame sub-assembly product FS <b> 2 is manufactured, each of the frame insertion pieces 70 </ b> A <b> 4 of the frame bending surrounding piece 70 </ b> A is inserted into the second frame 44. Next, the frame insertion piece 70B4 of the frame bending surrounding piece 70B is inserted into the other end side of the second frame 44. The frame sub-assembly product FS2 thus obtained is set so that the center frame bent surrounding piece 70A (specifically, the bent portion 70A3 in FIG. 12) is on the upper surface of the first frame 42 in the center of the pallet. Next, as indicated by the white arrows in FIG. 15, the left and right second frames are arranged so that the frame bent surrounding piece 70 </ b> B in each frame sub-assembly product FS <b> 2 is positioned on the side of the first frame 41 or the first frame 43. 44 is depressed. As a result, the frame bending surrounding piece 70A is bent by winding the first frame 42 as described above, and the second frame 44 is moved to the first frame at the left and right side frame winding portions of the first frame 42 that has been wound. 42 is engaged.

  As the second frame 44 is pushed down, the frame bent surrounding piece 70B rides the bent portion 70B3 on the first frame 41 or the first frame 43 on the left and right sides of the pallet. After that, as shown in FIG. 16, when the first base portion 70B1 of one frame bending surrounding piece 70B is bent so as to press against the side surface of the first frame 43, the frame bending surrounding piece 70B is as described above. The first frame 43 is bent and bent, and the second frame 44 is engaged with the first frame 43 at the side of the first frame 43 where the first frame 43 is wound. The same applies to the other frame bent surrounding piece 70B. Thereby, as shown in FIG. 16, the main part of the pallet frame | skeleton part 30 already reinforced with the newly incorporated 2nd frame 44 is completed. In addition, in order to maintain and secure the frame winding state of the frame bending surrounding piece 70B, the tongue piece portion 70B5 can be caulked and fixed to the first frame 41 or the first frame 43 with a chisel or the like. The same applies to the frame bending surrounding piece 70A.

  Next, the floor surface touch plate 80 is assembled to the pallet skeleton 30 in order to enhance the convenience of placing on the floor surface or to protect the floor surface. FIG. 17 is an explanatory view showing a schematic perspective view of the floor touch plate 80E gripping and engaging with the end pallet leg 50 at the left and right ends of the pallet together with an end view of the main part. FIG. 19 is a schematic perspective view of the floor surface touch plate 80S, FIG. 19 is an explanatory view showing the previous stage of fixing the floor surface touch plate to the pallet skeleton 30, and FIG. It is explanatory drawing shown.

  As shown in FIG. 17, the floor touch plate 80E is a press-molded product obtained by bending the ascending plate 80E2 from the flat plate 80E1 and a press-formed product obtained by bending the ascending plate 80E5 from the flat plate 80E4. Prepare. Both the above-mentioned flat plates function as a placing plate portion on the floor surface, and both rising plates are sandwiched between lower ends of the end pallet legs 50 at the left and right ends of the pallet as will be described later. The flat plate 80E4 has a small width in order to prevent the left and right ends of the pallet from protruding from the first frame 41 or the first frame 43 in the pallet lateral direction. The upper end of the flat plate 80E1 is a bent engagement piece 80E3, and this engagement piece 80E3 enters the notch 64a of the end pallet leg 50 to prevent the plate after being sandwiched. Through holes 81 are left in the back-to-back ascending plates as dishing marks, and both ascending plates are subjected to dishing from both sides as shown in the cut end view of the main part in FIG. It is joined and fixed leaving the hole 81.

  As shown in FIG. 18, the floor touch plate 80S includes two press-molded products obtained by bending the ascending plate 80S2 from the flat plate 80S1, with the ascending plates back to back. The flat plate 80S1 functions as a placing plate portion on the floor, and the back-to-back ascending plate 80S2 is sandwiched between lower ends of the central pallet legs 60 at the center of the pallet as described later. The upper end of the flat plate 80S1 is a bent engagement piece portion 80S3, and this engagement piece portion 80S3 enters the notch 64a of the central pallet leg 60 to prevent the plate from being clamped. Even in the floor surface touch plate 80S, the through hole 81 is left and bonded and fixed as described above.

  As shown in FIG. 19, a floor touch plate 80E is arranged below the pallet skeleton 30 and more specifically below the first frame 41 at the left end of the pallet and below the first frame 43 at the right end of the pallet. A floor touch plate 80S is disposed below the central first frame 42. Regarding the floor touch plate 80E, a wide flat plate 80E4 is positioned on the pallet end side. On this basis, when the pallet skeleton 30 is lowered, as shown in FIG. 20 and its enlarged view of the main part, the first plate 61 and the second plate opened at the lower end side of the end pallet leg 50 at the left and right ends of the pallet. 62, the back-to-back ascending plates 80E2 and 80E5 of the floor touch plate 80E enter, and the engaging piece 80E3 at the upper end of the ascending plate 80E2 enters the notch 64a of the first plate 61. At the center of the pallet, a back-to-back ascending plate 80S2 of the floor surface touch plate 80S enters between the first plate 61 and the second plate 62 opened on the lower end side of the center pallet leg 60, and the engaging piece at the upper end of the ascending plate 80S2 80S3 enters the notches 64a of the first plate 61 and the second plate 62, respectively.

  After the floor surface touch plate is set in this way, the bent portion 64 of the end pallet leg 50 and the center pallet leg 60 faces the holding portion 64 of the first plate 61 at the lower end of the second plate 62. Press toward the first plate 61. As a result, the first plate 61 and the second plate 62 face each other from the upper end to the lower end, and the rectangular plate-shaped hollow leg-shaped portion is moved from the upper end to the lower end so that the first plate 61 embraces the second plate 62. To form.

  The floor touch plate 80E and the floor touch plate 80S extend the flat plates 80E1, 80E4, 80S2 along the corresponding first frames 41 to 43 on the lower end side of the end pallet leg 50 or the center pallet leg 60. Become. The end pallet leg 50 and the center pallet leg 60 that have fallen from the first frames 41 to 43 are back-to-back ascending plates 80E2 and 80E5 that have risen from the respective flat plates toward the first frames 41 to 43. Alternatively, the back-to-back ascending plate 80S2 is clamped at the lower end of the leg.

  Due to the pressing of the second plate 62, the engaging claw 65 of the second plate 62 jumps out of the claw insertion hole 66 of the first plate 61 on the lower end side of the leg as shown in the enlarged view of FIG. The engaging claw 65 of 61 extends to the back side of the second plate 62. The engaging claws 65 of the first plate 61 are bent so as to hold the wall surface of the second plate 62 in all the end pallet legs 50 and the central pallet legs 60. The engaging claw 65 of the second plate 62 that protrudes from the claw insertion hole 66 is bent later for fixing the corner stay 90 at the end pallet leg 50 and the central pallet leg 60 positioned at the front and rear ends of the pallet. In other pallet legs, the engaging claws 65 of the second plate 62 are bent so as to hold the wall surface of the first plate 61. In the present embodiment, as described above, since the heavy object placement is assumed, the corner stay 90 for reinforcement is installed at the corner part or the center of the pallet skeleton part 30, but the heavy object placement is not assumed. In this case, the corner stay 90 can be omitted. Therefore, in this case, the engaging claws 65 of the second plate 62 protruding from the claw insertion holes 66 may be bent at all the pallet legs in the same manner as the engaging claws 65 of the first plate 61. it can.

  FIG. 21 is a schematic perspective view of the corner stay 90, and FIG. 22 is an explanatory diagram showing how the corner stay 90 is assembled. As shown in FIG. 21, the corner stay 90 is a press-molded product in which a ceiling portion 91 and a side wall 92 are connected by a bent reinforcing plate 93, and the ceiling portion 91 includes a female screw hole 96. The side wall 92 has a notch 94 and an insertion hole 95 into which the engaging claw 65 on the lower end side of the end pallet leg 50 or the center pallet leg 60 enters. As shown in FIG. 22, the corner stay 90 is disposed at the intersection of the second frame 44 and the end pallet leg 50 or the central pallet leg 60 at the front, rear, left, right, and front and rear of the pallet. The engaging claw 65 jumping out from the 95 is engaged and fixed to the side wall of the pallet leg by bending. As shown in FIG. 22, the corner stay 90 thus fixed overlaps the through hole 44 s of the second frame 44 with the female screw hole 96 and supports the lower surface of the second frame 44 on the upper surface of the ceiling portion 91. As a result, the pallet frame 30 is completed, the top plate 20 is placed on the top surface of the pallet frame 30 (see FIG. 1), the screws 22 are passed through the through holes 44s of the second frame 44, and the corner stays are placed. When it is screwed into the 90 female screw holes 96, the pallet 10 is completed.

  As described above, in the pallet 10 of this embodiment, the top plate frames 40 on the four sides around the pallet skeleton 30 are arranged between the first frames 41 to 43 arranged in parallel and the first frames on both ends of the frame. It forms with the provided 2nd frame 44, and supports each corner part and the center of a pallet front-and-rear end with the edge part pallet leg 50 and the center pallet leg 60 (refer FIG. 2). The end pallet leg 50 and the center pallet leg 60 hold any one of the first frames 41 to 43 by being wound, bent and falling with any one of the first frames 41 to 43 as a top, and corresponding. The first plate 61 and the second plate 62 are opposed to each other at the falling portion from the first frame. Therefore, the end pallet leg 50 and the center pallet leg 60 are subjected to frame holding by the winding and bending of the first frames 41 to 43, and the first plate 61 and the second plate 62 are opposed to each other. The frame 40 is supported at each corner and the center of the front and rear ends of the pallet.

  In addition, the end pallet leg 50 and the center pallet leg 60 are connected to the second frame 44 by the wedge plate 100 and the wedge plate 110 at the frame winding position on the side of the first frame. The plate 62 is firmly engaged (see FIGS. 9 to 11). As a result, according to the pallet 10 of this embodiment, the first frame 41 to 43 and the second frame 44 form the top plate frame 40 on the four sides around the pallet skeleton 30, and the end pallet leg 50 and the central pallet leg. In the support of the top plate frame by 60, only the winding and bending of the sheet metal processing plate and the second frame engagement by the wedge fitting 100 and the wedge plate 110 are required (see FIGS. 3 to 6). For this reason, the pallet configuration can be simplified, and even when handling parts in the manufacturing process, the first frames 41 to 43 and the second frame 44 can be handled and held through the plate winding, which is convenient. And since it can respond to various pallet sizes only by changing the length of the 1st frames 41-43 and the 2nd frame 44, versatility increases. In addition, since spot welding is not required when manufacturing the pallet, the pallet manufacturing environment can be improved.

  As described above, spot welding is not required when manufacturing the pallet, and the formation of the top frame 40 on the four sides around the pallet skeleton 30 is performed using the sheet metal processing plate, thereby providing the following advantages. is there. In the steel pallet, a plating process is performed to ensure continuity of rust prevention on the surface of each member. Plating is performed by immersing a component to be plated in a plating bath. On the other hand, when spot welding is performed, plating disappears at the welded portion. For this reason, in the steel pallet manufactured through spot welding, a plating bath having a size enough to immerse the steel pallet as a finished product is required. Increasing the size of the plating bath results in an increase in the amount of plating chemicals used and an increase in power consumption. Further, a dashing operation for immersing the steel pallet as a finished product in the plating bath is also necessary, which is complicated.

  However, as described above, spot welding at the time of manufacturing the pallet is not necessary, and in the present embodiment in which the top plate frame 40 on the four sides around the pallet frame 30 is formed using the sheet metal processing plate, the first frames 41 to 43 are used. As described above, the pallet components such as the end pallet leg 50 and the center pallet leg 60 are plated in advance, and the end pallet leg 50 and the center pallet leg as described above. It is sufficient that 60 members be bent, and there is almost no loss of plating upon such bending. For this reason, in the pallet 10 of the present embodiment, it is possible to ensure the continuity of rust prevention by plating, and it is possible to reduce the size of the equipment during the plating process, thereby simplifying the work and reducing the cost.

  The end pallet leg 50 and the center pallet leg 60 are selectively used according to the left and right specifications depending on the formation position of the wedge insertion hole 67 (see FIGS. 3 to 4). It was made to engage in the vicinity of the ends of the frames 41-43. For this reason, according to the pallet 10 of a present Example, since the protrusion of the 1st frames 41-43 from the front-and-back end of a pallet can be refrained, improvement in usability or simplification of handling can be achieved.

  Further, in the pallet 10 of this embodiment, since the pallet is held by the central pallet leg 60 and the frame is engaged even at the center of the front and rear ends of the pallet (see FIG. 2), the strength of the pallet frame itself and the strength of the frame are improved. Can be achieved. Due to these strength improvements, the pallet 10 of the present embodiment becomes a pallet with a large load-carrying weight and brings about expansion of cargo handling applications.

  In addition, in the pallet 10 of the present embodiment, a new one is provided between the first frame in parallel with the second frame 44 engaged with the end pallet leg 50 and the center pallet leg 60 between the pallet front end and the rear end. The second frame 44 is disposed, and the new second frame 44 is engaged with the first frames 41 to 43 by the frame bent surrounding pieces 70A to 70B disposed at the disposed positions (FIGS. 12 to 16). reference). When the new second frame 44 is engaged, the first frames 41 to 43 are wound by bending the frame bending surrounding pieces 70A to 70B, and the frame insertion pieces 70A4 to 70B4 are inserted into the frame hollow portions. It does not need welding. And since the newly arranged second frame 44 is used to reinforce the parallel first frames 41 to 43, the strength of the pallet skeleton 30 can be further improved, and the load carrying weight can be increased. preferable.

  Moreover, in the pallet 10 of the present embodiment, the end pallet leg 50 and the center pallet leg 60 are respectively ligated with the first plate 61 and the second plate 62 across the falling portions from the first frames 41 to 43. Thus, a hollow leg-shaped portion was formed (see FIG. 11). Therefore, according to the pallet 10 of the present embodiment, it is possible to improve the strength of the pallet leg itself and increase the load-bearing weight associated therewith.

  Further, the flat surface plates 80E1, 80E4, and 80S1 are extended along the first frames after the floor surface touch plate 80 is sandwiched and engaged with the lower ends of the pallet legs corresponding to the first frames 41 to 43, respectively. FIG. 17 to FIG. 20). Therefore, in the pallet 10 of the present embodiment, the flat plate is positioned at the lower end of the end pallet leg 50 or the center pallet leg 60 aligned along the first frames 41 to 43, thereby placing on the floor surface. And can improve stability.

  Moreover, in the pallet 10 of the present embodiment, the first frames 41 to 43 and the second frame 44 are formed of a prismatic hollow shaft material, so that the pallet skeleton 30 and thus the weight of the pallet 10 itself is reduced. Can be achieved.

  In addition, since the top plate 20 is fixed to the upper surface of the pallet skeleton part 30 (see FIG. 1), it is possible to prevent the cargo handling drop from between the frames of the pallet skeleton part 30. As a result, the range of cargo handling objects is widened and versatility is enhanced.

In addition, corner stays 90 are disposed at the intersections of the second frame 44 and the end pallet legs 50 or the center pallet legs 60 at the front, rear, left, right, and front and rear centers of the pallet. There is support the lower surface of the second frame 44 for the center pallet leg 60. Therefore, according to the pallet 10 of the present embodiment, it is possible to improve the strength of the pallet skeleton 30 itself and increase the load carrying weight.

  In addition, the center pallet leg 60 is rotated on the pallet front end side and rear end side when engaging the left and right second frames 44 close to the frame end with respect to the first frame 42 in the center of the pallet. Use differently. Therefore, the central pallet leg 60 can be made common at the front and rear ends of the pallet, and the manufacturing process can be simplified.

  Next, a modified example will be described. In this modification, the configuration in which the pallet leg and the corner stay are integrated is different from the configuration in which the second frame for reinforcement is held. Hereinafter, different configurations will be described in detail, and the same members are denoted by the same reference numerals, and the description thereof is omitted. FIG. 23 is an explanatory view showing the outline of a pallet 210 according to a modification, corresponding to FIG.

  As shown in the drawing, a pallet 210 according to a modification includes a top plate 20 mounted on a pallet skeleton 30. The top plate 20 is fixed by nailing to the first frames 41 to 43 and the second frame 44 in the top plate frame 40 of the pallet skeleton 30. Although these frames are made of steel but are thin, the top plate 20 can be fixed with a nailing machine using compressed air. The top surface of the nail is the same as the top surface of the top plate 20. It is driven to become one. Even in this pallet 210, the top frame 40 is supported by a plurality of end pallet legs 250 and a center pallet leg 260 extending from the frame connecting portion, as in the above-described embodiment. 24 is an explanatory view showing the state of frame connection at the center of the frame by the center pallet leg 260 in an enlarged view, and FIG. 25 shows the state of frame connection as viewed from the direction A in FIG. 24 with one second frame 44 omitted. FIG. 26 is a diagram corresponding to FIG. 3, and is a diagram illustrating the central pallet leg 260 and the wedge metal fitting 100 together.

  As shown in the figure, the center pallet leg 260 forms a prismatic hollow leg-shaped portion with the first plate 61 and the second plate 62 as in the case of the center pallet leg 60, and engages with the engaging claw 65 that enters the claw insertion hole 66. It is integrated by bending. The central pallet leg 260 extends the corner stay 290 from both the first and second plates toward the second frame 44. The corner stay 290 includes a frame holder 291 that is bifurcated at the upper end thereof, and the second frame 44 is supported on the lower surface of the frame by the holder. The corner stay 290 is press-molded integrally with the first plate 61 and the second plate 62 and has a reinforcing boss 292. In addition, the center pallet leg 260 includes a bridge 63 and a frame grip 293 provided continuously to the bridge. When the center pallet leg 260 is bent with the first frame 42 as the apex in the same manner as the center pallet leg 60 described above, the frame grip 293 overlaps the upper surface of the first frame 42 at the grip center part, and The side surface of the first frame 42 is held after bending.

  FIG. 27 is an explanatory view showing an enlarged view of the frame connection at the frame corner by the end pallet leg 250, and FIG. 28 is an explanatory view showing the end pallet leg 250 and the wedge metal fitting 100 together. As shown in the figure, the end pallet leg 250 is formed in the same manner as the end pallet leg 50 by forming a prismatic hollow leg-shaped portion with the first plate 61 and the second plate 62, and bent so as to embrace the opposing plates. The engaging claws 65 are integrated. The illustrated end pallet leg 250 extends a corner stay 290 from the first plate 61 toward the second frame 44, and supports the second frame 44 on the lower surface of the frame by a bifurcated frame holder 291 of the corner stay 290. . Even in the end pallet leg 250, like the above-described end pallet leg 50, the left and right specifications are in a mirror image relationship and are used properly at each corner of the top frame 40. Further, the end pallet leg 250 includes a frame grip 293 similarly to the central pallet leg 260, and holds the upper surface of the first frame 41 or the first frame 43 and the side surfaces of the frame through bending of the grip.

  The pallet 210 uses the frame bent surrounding pieces 270A to 270B instead of the frame bent surrounding pieces 70A to 70B described above to connect the second frame 44 for reinforcing the top plate frame 40 to the first frames 41 to 43 on both sides thereof. Match. FIG. 29 is an explanatory view showing a state in which the second frame 44 is engaged with both sides of the first frame 42 by the frame bent surrounding piece 270A, and FIG. 30 shows the second frame on one side of the first frame 43 by the frame bent surrounding piece 270B. It is explanatory drawing which shows a mode that 44 is engaged.

  As shown in the figure, the frame bending surrounding piece 270A is the frame bending surrounding piece described above in that the frame end hollow portion of the second frame 44 is expanded when the second frame 44 is engaged with both sides of the first frame 42. It is different from 70A. The frame bent surrounding piece 270A includes a first insertion portion 272 and a second insertion portion 273 facing each other on both sides of a surrounding piece body 271 that is bent so that the first frame 42 at the center of the pallet is inserted and the frame is wound around. . Before the second frame 44 is engaged, the first frame 42 is inserted into the surrounding piece body 271, and the first insertion portion 272 faces the other so as to overlap with each other to prepare for the insertion (press press-fitting) of the second frame 44.

  The second insertion portion 273 includes a conical protrusion 274 that is convex on the inside of the body at a connection location with the surrounding piece body 271, and the conical protrusion 274 is formed on the first frame 42 before the second frame 44 is inserted. The posture is inclined so as not to interfere with the side surface. When the second frame 44 is press-fitted into the second insertion portion 273, the inclined second insertion portions 273 face each other so that the contours overlap, and the conical protrusions 274 are arranged on the side surfaces of the first frame 42. To bite into. The engagement of the protrusions determines the engagement position of the second frame 44 with respect to the first frame 42 and does not change when the pallet is used. The first and second insertion portions described above leave an expansion mark 44 b at the frame end by press-fitting the second frame 44. Although the frame bending surrounding piece 270B does not have the first insertion portion 272, the engagement of the second frame 44 is the same as that of the frame bending surrounding piece 270A. Each of the frame bent surrounding pieces 270A to 270B is a pressed product of a steel plate, press punched along the contour of the unfolded shape in which each part is developed, bending of a necessary portion around the punched die material, and the conical projection 274. It is formed by pressing and raising for forming and three-dimensional box bending press for forming each part.

  The pallet 210 of the modified example is integrally provided by connecting the left and right ends of the pallet and the floor surface touch plate at the center of the pallet in the embodiment described above. FIG. 31 is an explanatory view showing an exploded plate sub-assembly product 280SA, which is a structural unit of the floor surface touch plate 280 in the pallet 210, FIG. 32 is an explanatory view showing how the plate sub-assembly product 280SA is assembled, and FIG. It is explanatory drawing which shows the mode of the assembly of the surface touch plate 280.

  As shown in FIG. 33, the floor touch plate 280 is configured by assembling two plate sub-assemblies 280SA, and the plate sub-assemblies 280SA are formed by reinforcing the opposing first touch plates 280S1 at both ends thereof with a hollow reinforcing frame. 285 is engaged. For this engagement, the frame engagement mechanism described above via the end pallet leg 50 and the center pallet leg 60 was adopted. That is, as shown in FIGS. 31 to 32, the wedge metal fitting 100 is inserted into the wedge insertion holes 281 provided at both ends of the first touch plate 280S1, and the wedge tip is inserted into the opening of the reinforcing frame 285, so that the wedge plate 110 is inserted. The wedge metal fitting 100 is expanded by driving. As a result, a protruding mark 44a is formed on the reinforcing frame 285, and the reinforcing frame 285 is firmly engaged with the first touch plate 280S1 at the opening end thereof. By performing this process on the opposing first touch plate 280S1, a plate sub-assembly product 280SA is obtained. In this case, the wedge insertion hole 281 is depressed around the insertion hole so that the engagement portion 106 (see FIG. 3) of the wedge metal fitting 100 is flush with the surface of the first touch plate 280S1. It is formed to do. In addition, the pallet length of the reinforcing frame 285 is adjusted in accordance with the distance between the end pallet leg 50 and the center pallet leg 60 in the pallet skeleton 30.

  Next, as shown in FIG. 33, two plate sub-assembly products 280SA are joined so that the first touch plates 280S1 are back to back, and the second touch plate 280S2 is attached to the first touch plate 280S1 on the left and right end sides. Join. Then, the first and second touch plates are joined by subjecting the joined plates to dishing. As shown in the drawing, a through-hole 81 that is a dish scumming trace is left at the joint location. In the first touch plate 280S1, similarly to the floor touch plate 80E and the engagement piece 80E3 of the floor touch plate 80S described above, the upper end of the rising portion is bent to prevent the first touch plate 280S1.

  As described above, the pallet 210 is different from the pallet 10 described above in the configuration of the pallet legs, the holding configuration of the second frame for reinforcement, and the configuration of the floor touch plate. Assembled. Hereinafter, although the manufacturing procedure of the pallet 210 will be described, the same procedure as that of the pallet 10 will be simplified.

  FIG. 34 is an equivalent view of FIG. 6 and is an explanatory view showing a procedure for engaging and fixing the second frame 44 to the central pallet leg 260. FIG. 35 is an equivalent view of FIG. It is explanatory drawing which shows the mode of engagement of the part pallet leg.

  As in the procedure for assembling the frame leg sub-assembly product FS1 described above, first, as shown in FIG. 34, the two second frames 44 are engaged with the center pallet leg 260 using the wedge bracket 100 and the wedge plate 110.・ Fix it. Thereafter, as shown in FIG. 35, the end pallet leg 250 is engaged and fixed to the other end side of the second frame 44 to produce the frame leg sub-assembly product FS1. In this modification, the second plate 62 of the end pallet leg 250 is on the inner side in the drawing for the convenience of providing the corner stay 290 on each pallet leg. As in the case of the pallet 10, the obtained frame leg subassembly product FS1 is prepared for two sets before and after the pallet and two sets at the center of the pallet, and the first frame 42 on which the frame bending surrounding piece 270A is mounted is prepared. . FIG. 36 is an explanatory view showing a state of mounting the frame bending surrounding piece 270A on the first frame 42 and the first frame 42 to which the surrounding piece has been attached.

  As shown in the drawing, the first frame 42 is inserted into the frame bending surrounding piece 270A, and the surrounding pieces are set at appropriate intervals. The frame bending surrounding piece 270A is located before the frame is inserted, and the second insertion portion 273 facing each other is inclined up and down as shown in the enlarged view of FIG. 36, so that it does not interfere with the conical projection 274 of the base portion of the insertion portion. The first frame 42 can be inserted. The set interval of the frame bending surrounding pieces 270A in the first frame 42 is adjusted so that the frame bending surrounding pieces 270A are positioned between the center pallet legs 260 in the pallet frame 30.

  FIG. 37 is a view corresponding to FIG. 8 and is an explanatory view showing a previous stage of holding the first frame 42 at the center of the pallet in the frame leg sub-assembly product FS1 of the modification. As shown in the figure, the frame leg sub-assembly product FS1 is arranged with respect to the first frame 42 to which the frame bending surrounding piece 270A is already attached, and the central pallet leg 260 is moved to the first position by the procedure shown in FIGS. The frame 42 is bent so as to be wound with the top as the top. Accordingly, the first frame 42 at the center of the pallet is held by the center pallet leg 260 of the frame leg sub-assembly product FS1 (see FIG. 9). In this case, on the falling side from the first frame 42, the plate is fixed on the central pallet leg 260 by bending the engaging claws 65 as described above. Then, the corner stay 290 of the central pallet leg 260 supports the second frame 44 by the frame holder 291 as shown in FIGS. Further, the frame grip 293 provided continuously with the bridge 63 covers the upper surface of the first frame 42 at the central portion thereof, and holds the side surface of the first frame 42 by bending the grip end.

  Next, the pallet skeleton part 30 is formed according to the procedure shown in FIGS. FIG. 38 is an explanatory view showing a state of mounting the frame bending surrounding piece 270B on the first frame 41 and the first frame 41 with the surrounding piece attached.

  As shown in the drawing, the first frame 41 is inserted into the frame bending surrounding piece 270B, and the surrounding piece is set at a position facing the frame bending surrounding piece 270A in FIG. Even in the frame bending surrounding piece 270B, the second insertion portion 273 facing each other is inclined up and down as shown in the enlarged view of FIG. 38 before the frame is inserted, so that it interferes with the conical protrusion 274 of the base portion of the insertion portion. The first frame 41 can be inserted without doing so. The same applies to the case where the frame bending surrounding piece 270B is attached to the first frame 43.

  FIG. 39 is an explanatory view showing a previous stage of holding the first frame 41 and the first frame 43 on the left and right of the pallet in the modified frame leg sub-assembly FS1, and FIG. 40 is a diagram corresponding to FIG. FIG. 41 is a view equivalent to FIG. 11 showing a state in which the first frame 41 and the first frame 43 on the left and right sides of the pallet are held by the leg sub-assembly product FS1, and FIG. 41 is a view equivalent to FIG. It is explanatory drawing which shows the condition which hold | maintained the 1st frame 41 and the 1st frame 43 on either side.

  As shown in FIG. 39, the first frame 41 and the first frame 43, to which the frame bent surrounding pieces 270B are attached, are arranged side by side with the first frame 42 held by the central pallet leg 260, and face each other. A second frame 44 is newly set between the piece 270A and the frame bending surrounding piece 270B. In addition, the second insertion portion 273 of the frame bending surrounding pieces 270A to 270B and the first insertion portion 272 of the frame bending surrounding piece 270A are inserted into the hollow portions at both ends of the newly set second frame 44, and the first frame 41 is inserted. The first frame 43 is pressed from the outside. As a result, the insertion portion of each surrounding piece engages with the frame leaving the expansion mark 44b on the second frame 44 as described with reference to FIGS. 29 to 30, and therefore the first frame 42 via both surrounding pieces. The left and right second frames 44 and the first frame 41 or the first frame 43 and the second frame 44 are firmly engaged and fixed.

  Following the engagement of the second frame 44 via both the surrounding pieces, as shown in FIG. 40, the end pallet leg 250 is bent so as to be wound with the first frame 41 or the first frame 43 at the top. Thus, the first frame 41 and the first frame 43 are held at the left and right ends of the pallet by the end pallet legs 250 of the frame leg sub-assembly product FS1 (see FIG. 41). In this case, on the falling side from the first frame 41 and the first frame 43, the end pallet leg 250 is fixed to the plate by bending the engaging claws 65 as described above. Then, the corner stay 290 of the end pallet leg 250 supports the second frame 44 by the frame holder 291 as shown in FIG. Further, the end pallet leg 250 holds the first frame 41 or the first frame 43 by a frame grip 293 provided continuously to the bridge 63.

  Next, the floor touch plate 280 of the modified example is assembled to the pallet skeleton part 30. FIG. 42 is a diagram corresponding to FIG. 19 and is an explanatory view showing the previous stage of fixing the floor surface touch plate to the pallet skeleton 30 of the modified example, and FIG. 43 is a diagram corresponding to FIG. It is explanatory drawing which shows the mode of surface touch plate fixation.

  Since the floor touch plate 280 of the modified example has already integrated the center of the pallet and the touch plates on the left and right of the pallet as described above, as shown in FIG. Place the plate 280. When the pallet skeleton 30 is lowered, as described in FIG. 20 and the enlarged view of the main part thereof, the first plate 61 and the second plate 62 are used on the lower end side of the end pallet leg 250 and the center pallet leg 260. The floor touch plate 280 is sandwiched. Thereafter, as described above, the engaging claws 65 are also bent on the pallet leg lower end side, and the first plate 61 and the second plate 62 are integrated in each pallet leg. As a result, the pallet skeleton 30 is completed, and the top plate 20 is placed on the top surface of the pallet skeleton 30 and nailed (see FIG. 23), whereby the pallet 210 of the modified example is completed.

  As described above, even the pallet 210 of the modified example can achieve the same effects as the pallet 10 of the embodiment described above, and has the following advantages. In the pallet 210 of the modified example, a corner stay 290 for supporting the second frame 44 is integrally provided on the end pallet leg 250 and the central pallet leg 260. Therefore, the second frame 44 can be supported by the corner stay 290 simply by bending each pallet leg and the engagement claw 65, which is convenient.

  Further, when the second frame 44 is assembled for reinforcement between the front end and the rear end of the pallet, the second frame 44 is engaged with the frame bent surrounding pieces 270A to 270B. The frame bent surrounding pieces 270A to 270B are firmly pressed by press-fitting the first insertion portion 272 and the second insertion portion 273 into the end hollow portion of the second frame 44, leaving an expansion mark 44b at the frame end. The second frame 44 is engaged and fixed. For this reason, the holding strength of the second frame 44 with respect to the first frames 41 to 43 arranged facing each other can be increased, and at the same time, the strength of the top frame 40 can be increased. In addition, since the frame bent surrounding pieces 270A to 270B cause the conical protrusions 274 to bite into the side surfaces of the frame as the second frame 44 is press-fitted, the displacement of the second frame 44 can be avoided.

  Further, with respect to the floor surface touch plate 280, the reinforcing frame 285 is firmly engaged and fixed by the wedge fitting 100 and the wedge plate 110 with respect to the first touch plate 280S1 facing each other in the plate sub-assembly product 280SA. In addition, since the plate sub-assembly product 280SA is integrated through dishing to form the floor surface touch plate 280, the strength of the floor surface touch plate 280, and thus the end pallet legs 250 and the central pallet legs 260 The strength on the lower end side can also be increased. Therefore, the cargo handling weight of the pallet 210 can be increased, and the cargo handling application can be further expanded.

  Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and can be implemented in various modes without departing from the scope of the present invention. For example, in the above-described embodiment, the first frame 42 is also arranged in the center of the pallet, and the second frame 44 is engaged with the left and right sides of the first frame 42 by the central pallet leg 60. The first frame 42 and the center pallet leg 60 at the center of the pallet can be omitted from the assumed low load-bearing weight. Moreover, for the convenience of a large pallet size and an increase in load-bearing weight, a plurality of first frames 42 and a plurality of central pallet legs 60 that support the first frame 42 can be arranged in the center of the pallet.

  Further, in engaging the second frame 44 on the frame end side of the first frame 41 and the first frame 43, in the above embodiment, the end pallet leg 50 is set to the left and right specifications, and is brought close to the frame end of the first frame. However, the present invention is not limited to this. That is, when engaging the second frame 44, in the pallet in which the projection of the frame end of the first frame is allowed, the formation position of the wedge insertion hole 67 in the end pallet leg 50 can be the center of the plate. The same applies to the center pallet leg 60. In this way, the end pallet leg 50 and the center pallet leg 60 can be configured in the same manner in each leg configuration, so that the manufacturing process can be simplified.

In palette 210 variant has used an integrated floor touch plate 280 can be in so that with the floor surface touch plate 80E and the floor surface touch plate 80S parted in pallet center and the pallet horizontally.

  Further, in the above embodiment, the pallet is made of steel, but since this pallet does not require welding, it fulfills the functions (strength, hardness, etc.) as a pallet material, such as ceramics or synthetic resins such as plastic. Other materials can be used as long as they are materials.

DESCRIPTION OF SYMBOLS 10 ... Palette 20 ... Top plate 22 ... Screw 30 ... Pallet frame | skeleton part 40 ... Top plate frame 41-43 ... 1st frame 44 ... 2nd frame 44a ... Bumping mark 44b ... Expansion mark 44s ... Through-hole 50 ... End pallet leg 60 ... Central pallet leg 61 ... First plate 61a ... Connection part 62 ... Second plate 62a ... Connection part 63 ... Bridge 63a ... Through hole 64 ... Grasping part 64a ... Notch 65 ... Engagement claw 66 ... Claw insertion hole 67 ... Wedge Insertion hole 67a ... Projection piece 67b ... Narrow peripheral edge 67c ... Expansion peripheral edge 68 ... Notch 70A-70B ... Frame bending surrounding piece 70A1 ... First base 70A2 ... Second base 70A3 ... Bending part 70A4 ... Frame insertion piece 70A5 ... Tongue piece 70B1 ... 1st base part 70B2 ... 2nd base part 70B3 ... Bending part 70B4 ... Frame insertion piece 70B5 ... Tongue piece part 80, 80 80S ... Floor surface touch plate 80E1 ... Flat plate plate 80E2 ... Rise plate 80E3 ... Engagement piece 80E4 ... Flat plate plate 80E5 ... Rise plate 80S1 ... Flat plate plate 80S2 ... Rise plate 80S3 ... Engagement piece part 81 ... Through hole 90 ... Corner Stay 91 ... Ceiling part 92 ... Side wall 93 ... Reinforcement plate 94 ... Notch 95 ... Insertion hole 96 ... Female screw hole 100 ... Wedge metal fitting 102 ... Wedge plate part 103 ... Wedge tip part 104 ... Raised part 105 ... Gap 106 ... Engagement part 110 ... Wedge plate 210 ... Pallet 250 ... End pallet leg 260 ... Central pallet leg 270A to 270B ... Frame bending surrounding piece 271 ... Surrounding piece body 272 ... First insertion portion 273 ... Second insertion portion 274 ... Conical protrusion 280 ... Floor touch plate 280S1 ... 1st touch plate 2 0S2 ... second touch plate 280SA ... plate subassembly article 281 ... wedge insertion holes 285 ... reinforcing frame 290 ... Corner stay 291 ... frame holder 292 ... boss 293 ... frame grip FS1 ... frame leg subassembly article FS2 ... frame subassembly products

Claims (10)

A pallet,
A top frame formed by disposing a second frame between the first frames on both ends of the first frames arranged in parallel;
A pallet leg extending from each corner of the top plate frame to support the top plate frame,
The pallet leg is
A first plate located on a frame end side of the second frame, and a second plate connected to the first plate; Holding a frame, and opposing the first plate and the second plate at a falling point falling from the held first frame,
Frame engagement that engages the second frame with the first frame by entering the frame hollow portion on the frame end side of the second frame at the frame winding portion corresponding to the side of the rolled first frame Pallet with mechanism.   2. The pallet according to claim 1, wherein the pallet leg is also provided between both ends of the first frame, and the second frame is engaged by the frame engaging mechanism also by the pallet leg between the two ends of the frame. . The pallet according to claim 1 or 2,
A new second frame disposed between the first frames in parallel with the second frame already disposed between the first frames and engaged by the pallet legs;
A frame bending surrounding piece that is bent by winding the first frame at the location of the new second frame,
The frame bend surrounding piece enters the frame hollow portion on the frame end side of the new second frame at the frame winding portion corresponding to the side of the rolled first frame, and the new second frame is moved to the first frame. A pallet that engages with one frame. A pallet according to any one of claims 1 to 3,
The frame engagement mechanism is
A wedge fitting formed by bending the plate so as to be folded, and the bent end side being inserted into the frame hollow portion of the second frame through an insertion hole formed in the first plate at the winding portion;
A plate engaging portion that extends from the end of the wedge fitting on the side opposite to the bent end, and engages the first plate at the periphery of the insertion hole;
A pallet comprising: a wedge plate that is inserted from the side of the plate engaging portion into the folding part of the wedge metal part and extends the wedge metal part to the inner peripheral wall side of the hollow part of the frame.   The pallet according to any one of claims 1 to 4, wherein each of the pallet legs forms a hollow leg-shaped portion by the first plate and the second plate over the falling portion.   The pallet according to claim 5, wherein the first plate and the second plate form the hollow leg-shaped portion by tying plate portions facing each other at the falling portion.   The pallet according to claim 6, wherein at least one of the first plate and the second plate has a stay that extends from the hollow leg-shaped portion toward the second plate and supports the second plate on the lower surface of the plate. A pallet according to any one of claims 1 to 7,
A flat plate extending along the first frame on the lower end side of the pallet leg corresponding to each of the first frames;
A rising plate rising from the flat plate toward the first frame;
Each pallet leg that has fallen from the first frame is a pallet that sandwiches the ascending plate on the lower end side of the opposed first plate and second plate.   The pallet according to any one of claims 1 to 8, wherein the first frame and the second frame are formed of a hollow shaft material.   The pallet according to any one of claims 1 to 9, wherein a top plate is fixed to an upper surface of the top frame formed by the first frame and the second frame.

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